2022 National Question 2 Single-choice Differentiating 2022_新课标II Paper 2.$(2 + 2\mathrm{i})(1 - 2\mathrm{i}) = (\quad)$ A. $-2 + 4\mathrm{i}$B. $-2 - 4\mathrm{i}$C. $6 + 2\mathrm{i}$D. $6 - 2\mathrm{i}$ Answer keyD ☆ SaveCan't do it, show the explanation查看原卷 →